Integer preemptive scheduling on parallel machinesстатья
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Дата последнего поиска статьи во внешних источниках: 8 октября 2025 г.
Аннотация:We consider preemptive machine scheduling problems on identical parallel machines. It is shown that every such problem with chain-like precedence constraints, release dates and a regular unit-concave objective function (e.g. total weighted tardiness and total weighted number of late jobs) has the followinginteger preemption property: for any problem instance with integral input data there exists an optimal schedule where all interruptions (as well as starting and completion times of jobs) occur at integer time points.